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UGC-NET | UGC NET CS 2016 July – III | Question 52

  • Last Updated : 24 Apr, 2018

Which of the following option with reference to UNIX operating system is not correct?
(A) INT signal is sent by the terminal driver when one types and it is a request to terminate the current operation.
(B) TERM is a request to terminate execution completely. The receiving process will clean up its state and exit.
(C) QUIT is similar to TERM, except that it defaults to producing a core dump if not caught.
(D) KILL is a blockable signal.


Answer: (D)

Explanation: In UNIX operating system:

  • INT signal is sent by the terminal driver when one types and it is a request to terminate the current operation.Correct
  • TERM is a request to terminate execution completely. The receiving process will clean up its state and exit.Correct
  • QUIT is similar to TERM, except that it defaults to producing a core dump if not caught.Correct
  • kILL is not a blockable signal.

So, option (D) is correct.

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